. >> reporter: the reason obama's yes has an asterisk, that in four years, no new gun control laws have been enacted. under obama's watch concealed weapons are now allowed on am track trains and in national parks. >> he's continued to pay lip service to those things but he hasn't shown real leadership pursuing those changes. >> reporter: yes, background checks have gotten more there or rogue under obama for people legally buying guns in gun shops. the big problem remains gun shows and the internet, specifically unlicensed dealers selling firearms to buyers with no background check needed. president obama has supported closing the gun show loophole in the past but the white house says his focus now is on existing laws. governor romney says no to any further regulation of gun shows. >> there's no particular change in law that's going to keep people in tent on doing harm from doing harm. >> the majority of gun owners believe we should do everything possible to prevent criminals and fugitives from purchasing weapons. >> reporter: while president obama says he wants tougher gun laws, little